Great versatile rifle for 300 BlackoutIf you shoot multiple types of rounds, or if you shoot suppressed this rifle is for you. Sig finally got the piston and adjustment right. I’ve owned several Sig rifles… from the old 556 platform, to 516s and 716s. All of them were great except for the piston being so heave up front. This thing, even while piston driven is lightweight and a solid performer.
When shooting 220gr subsonic rounds with my Yankee Hill Phantom suppressor it shot just as well as basic 120-150gr supersonic rounds. One click of the piston and it was ready to go.